hey guys, after a 11 year hiatus i decided to purchase an 87 T from a member at turbobuick.com. after getting it home it has started running stupid.... I started getting some help on a FB GN page and i thought the problem was fixed, but it came back. here is what is done to the car already 1987 Turbo T, Gun Metal Grey, TA49, 42.5# injectors, Scan Master 2.1, Walbro 340 pump, Racetronix hot wire kit, 3" TH Downpipe, 2.5" Hooker exhaust, Accufab Adjustable FP Regulator, CK Performance Transmission, K&N cone filter, SMC Alky non-progressive, Turbo Tweak Alky Chip, Adjustable Waste Gate Actuator, 3" lt1 MAF, Translator, Powerlogger. here are the things i have already checked or changed. delco plugs,fuel filter, new MAF, 3 different coil packs and modules (1 borg warner and 2 ac delco), chips, and i have a non alk coming from eric at TT, i have redone all the grounds as i found 2 of the black/white stripe wires not crimped properly and pulled apart from the ground extender install done by the previous owner. i also added a 8ga wire from the neg battery post to the stud on the extender, both fenders and to 1 of the studs on the module where it mounts all to make sure everything has a good ground. i have checked to alternator output at idle and under load with a dmm and it stays between 14.2v - 13.7v, i have checked spark output and it is good, fuel pressure is set at 43# line off and when coming into boost it was going up to 65# and i was told boost was around 22# so i have lowered the boost level to 15# by fuel pressure of 55# since i think my boost guage is off. but fuel pressure stays steady. here are the problems i am having (all intermittent) rough idle, o2 levels all over the place from 000-850, iac counts range 20-68 , idle is erratic, then when driving at cruising speeds it will just cut out and gets progressively worse. but other times it runs pretty good. i got to searching the sellers username here and i have come up with these 3 threads and it seems these are some of the same problems he has had. http://www.turbobuick.com/threads/car-jerking-popping-and-stuttering.334183/page-2#post-2693856 http://www.turbobuick.com/threads/ground-wire-by-trans-dipstick-bolt.334897/#post-2652365 http://www.turbobuick.com/threads/n...-park-neutral-on-ecm-i-o.336770/#post-2669320 can anybody steer me in the right direction on getting it straightened out? thanks in advance for the help!!!